Table of Contents
Advertisement
Appendix A. Manual modem commands
The following section lists commands for manually programming your modem.
Commands are accepted by the modem while it is in Command Mode. Your modem is automatically in
Command Mode until you dial a number and establish a connection. Commands can be sent to your modem
from a PC running communication software or any other terminal devices.
All commands sent to the modem must begin with AT and end with ENTER. All commands can be typed
in either upper or lower case, but not mixed. To make the command line more readable, spaces can be
inserted between commands. If you omit a parameter from a command that requires one, it is just like
specifying a parameter of 0.
Example:
ATH [ENTER]
Basic AT commands
In the following listings, all default settings are printed in bold text.
Command
A
A/
D_
DS=n
E_
+++
H_
© Copyright Lenovo 2009, 2011
L
P
T
W
,
@
!
;
E0
E1
H0
H1
Function
Manually answer incoming call.
Repeat last command executed. Do not precede A/ with AT
or follow with ENTER.
0 - 9, A-D, # and *
last number redial
pulse dialing
Note: Pulse dialing is not supported for Australia, New
Zealand, Norway, and South Africa.
touch-tone dialing
wait for second dial tone
pause
wait for five seconds of silence
flash
return to Command Mode after dialing
Dial one of the four telephone numbers (n=0-3) stored in the
modem non-volatile memory.
Commands are not echoed
Commands are echoed
Escape Characters - Switch from Data Mode to Command
Mode (T.I.E.S. Command)
Force modem on-hook (hang up)
Force modem off-hook (make busy)
Note: H1 command is not supported for Italy
45
Advertisement
Table of Contents
